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Forest and Grassland Resources Research ›› 2025›› Issue (3): 100-108.doi: 10.13466/j.cnki.lczyyj.2025.03.012

• Research paper • Previous Articles     Next Articles

Quantitative classification and ordination of plant communities in the Liulianling Provincial Nature Reserve,Hainan

ZHOU Mengjun1(), CHEN Yingzhuan1, PAN Liang1, LIU Zichao1, WU Can1, ZHAN Caichi1, DU Jiaqi1, WEN Xuding2()   

  1. 1. Hainan Forestry Group Co.,LTD.,Haikou 570203,China
    2. Hainan University,Haikou 570228,China
  • Received:2024-12-04 Revised:2025-06-01 Online:2025-06-28 Published:2026-01-07

Abstract:

The Hainan Liulianling Provincial Nature Reserve(LPNR)was established in 1981,and mastering the classification and ordination of plant communities in the reserve is of great significance for plant protection and ecological management.To reveal the species composition of plants in the LPNR and the ecological relationships between plant communities and environmental factors,we conducted a numerical classification and ordination of the surveyed plant communities using two-way indicator species analysis(TWINSPAN classification)and canonical correspondence analysis(CCA two-dimensional ordination)with typical plot survey data and valid environmental data.This study analyzed the distribution patterns of plant communities in relation to environmental factors.The results indicated that:1)LPNR was mainly composed of tropical lowland secondary forests.A total of 211 plant species from 145 genera and 72 families were recorded in the survey plots,including 127 species in the tree layer,50 species in the shrub layer,and 34 species in the herb layer;2)According to the TWINSPAN classification method,the secondary forests within the reserve were divided into five communities,namely the Garcinia oblongifolia-Gironniera subaequalis-Calamus faberii+Schizostachyum hainanense,Garcinia oblongifolia+Ellipanthus glabrifolius,Engelhardia roxburghiana+Garcinia oblongifolia,Endospermum chinense+Gironniera subaequalis-Heptapleurum heptaphyllum+Microdesmis caseariifolia-Licuala hainanensis+Pandanus austrosinensis,and Heptapleurum heptaphyllum+Radermachera frondosa.All these communities were dominated by woody plants;3)The results of the CCA two-dimensional ordination showed that annual precipitation,annul mean temperature,and altitude were the main environmental factors influencing the distribution of plant communities in this area.Additionally,the biplot of t-values indicated that these significant environmental factors,such as annual precipitation,annul mean temperature,and altitude,had certain impacts on the dominant species in the tree plant communities.

Key words: Hainan Liulianling Provincial Nature Reserve, plant community, TWINSPAN, CCA, environmental factors

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